| 四川会理拉拉铜矿对会理-东川坳拉槽新元古代构造岩浆事件的成矿响应 |
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| 引用本文： | 周家云,朱志敏,陈家彪,沈冰,李潇雨,罗丽萍.四川会理拉拉铜矿对会理-东川坳拉槽新元古代构造岩浆事件的成矿响应[J].沉积与特提斯地质,2009,29(3):84-89. |
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| 作者姓名： | 周家云 朱志敏 陈家彪 沈冰 李潇雨 罗丽萍 |
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| 作者单位： | 中国地质科学院矿产综合利用研究所,四川成都,610041 |
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| 基金项目： | 科技部国际科技合作项目 |
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| 摘 要： | 新元古代晋宁期是会理-东川地区铜矿的主要成矿时期,成矿时间较长,跨越了新元古代坳拉槽回返褶皱封闭阶段(1000~900M a)和地幔上涌拉张阶段(900~740M a)。在坳拉槽回返褶皱封闭阶段,南北向挤压促进了成矿元素的活化和迁移,使成矿物质重新富集。坳拉槽地幔上涌拉张阶段,辉长岩的侵入是会理-东川坳拉槽伴随Rodinia超大陆裂解的重要岩浆事件。辉长岩的侵位为成矿元素的重新活化、迁移、富集提供了强大的热动力,最终形成拉拉地区巨量金属元素的富集。
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| 关 键 词： | 会理-东川 坳拉槽 新元古代 构造-岩浆事件 成矿响应 |
Mineralization responses of the Lala copper deposit in Huili,Sichuan to the Neoproterozoic tectonic-magmatic events within the Huili-Dongchuan aulacogen |
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| ZHOU Jia-yun,ZHU Zhi-min,CHEN Jia-biao,SHEN Bing,LI Xiao-yu,LUO Li-ping.Mineralization responses of the Lala copper deposit in Huili,Sichuan to the Neoproterozoic tectonic-magmatic events within the Huili-Dongchuan aulacogen[J].Sedimentary Geology and Tethyan Geology,2009,29(3):84-89. |
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| Authors: | ZHOU Jia-yun ZHU Zhi-min CHEN Jia-biao SHEN Bing LI Xiao-yu LUO Li-ping |
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| Institution: | ZHOU Jia-yun; ZHU Zhi-min; CHEN Jia-biao; SHEN Bing; LI Xiao-yu; LUO Li-ping (Institute of Multipurpose Utilization of Mineral Resources; Chinese Academy of Geological Sciences; Chengdu 610041; Sichuan; China); |
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| Abstract: | The Huili-Dongchuan aulacogen extending across Sichuan and Yunnan is an important Proterozoic copper metallogenic province in China,and the Jinningian is a major metallogenic period during the Neoproterozoic.This long period of metallogenesis spanned the folding and closure stage(1 000-900 Ma) and mantle upwelling and extensional stage(900-740 Ma) of the aulacogen.During the folding and closure stage of the aulacogen,the N-S-trending compression facilitated the reactivation and migration of the ore-forming ... |
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| Keywords: | Huili-Dongchuan region aulacogen Neoproterozoic tectonic-magmatic event mineralization response |
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